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Classified waste oil recycling device and method

A first-class, oil valve technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., can solve the problems of strict maintenance and maintenance requirements, easy blockage of membrane pores, and high requirements for filter membrane materials, and achieve effective Reuse, no secondary pollution, obvious environmental benefits

Active Publication Date: 2014-05-21
SOUTHEAST UNIV
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Problems solved by technology

However, due to the high viscosity of the oil, the permeation flux of the oil through the membrane is very small, and the requirements for the filter membrane material are high, and the pores of the membrane are easily blocked and polluted, which affects the separation effect
The significant advantage of the hydrofining method is that there is no waste disposal problem, and it also has the characteristics of high recovery rate and good product quality, but it has strict requirements on the construction, operation, overhaul and maintenance of the device, and requires a suitable source of hydrogen. There are relatively few applications at home and abroad

Method used

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[0022] specific implementation plan

[0023] The technical route and the realization of the goals of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] The device of the present invention comprises a waste oil valve 1, a primary flue gas valve 2, a primary settling tank 3, a primary water slag valve 4, a primary water slag separation box 5, a primary oil valve 6, a secondary smoke valve 7, Secondary settling tank 8, secondary slag valve 9, secondary slag separation box 10, secondary oil valve 11, centrifuge 12, tertiary slag valve 13, tertiary slag separation box 14 and pump 15. Among them, the waste oil valve 1 is connected with the waste oil inlet A1 of the primary settling tank 3, the primary flue gas valve 2 is connected with the primary flue gas inlet B1 of the primary settling tank 3, and the high-temperature flue gas entering the primary settling tank 3 is The first-level flue gas is discharged from outlet C1...

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Abstract

The invention relates to a classified waste oil recycling device and a classified waste oil recycling method. According to the recycling device, the primary separation of primary oil, water and crude impurities can be realized by adopting a first-level settling tank, the secondary separation of secondary oil, water and fine impurities can be realized by a secondary settling tank, and final separation of recycled oil, water and micro impurities can be realized by a centrifugal separating machine. Crude impurities, fine impurities and micro impurities generated in the classification recycling process of waste oil are conveyed into a raw material plant, and are respectively conveyed into sintering technology or pelletizing technology and the like according to different physicochemical properties. The recycled oil is used again, and water is conveyed into a water treatment system. The device and the method can perform classification recycling on waste oil generated in iron and steel industry, the separation of oil, water and solid impurities in the waste oil can be realized, the recycled oil can be recycled, the water is conveyed into the water treatment system, and the solid impurities can be conveyed into pelletizing, sintering and other technologies in the raw material plant.

Description

technical field [0001] The invention relates to a novel treatment method for waste oil in the iron and steel industry, belonging to the field of resource utilization of waste. Background technique [0002] Iron and steel enterprises produce a large amount of waste oil in the production process, such as waste lubricating oil, waste hydraulic oil, waste gear oil and waste emulsion. The direct discharge of waste oil will cause great pollution, and it is also a waste of resources. Statistics show that waste oil regeneration in developed countries such as Europe and the United States accounts for 21% to 35% of the usage, while in my country it is only 4% to 13%, and the process used for waste oil regeneration is generally low in efficiency, high in energy consumption and cannot meet environmental protection requirements. Require. Therefore, it is necessary to carry out the harmless resource utilization of waste oil in terms of economic, environmental and social benefits. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/025B01D17/038B01D21/00B01D21/26
Inventor 钟文琪赵浩川周冠文金保昇
Owner SOUTHEAST UNIV
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